In an article by Philip Holsinger titled, "Cold case has sheriff hot on trail," (10 Nov. 2003), the White County, Arkansas Daily Citizen reports that eleven witnesses have failed polygraph "tests" in an investigation into the suspected murder of Douglas Gene Kirk in 1995:
http://www.thedailycitizen.com/articles/2003/11/10/news/news04.txt
While it is possible that some grand conspiracy is afoot, the more plausible explanation is that this is yet another example of the polygraph's notorious unreliability.
Well, we know what happened to the polygrapher in the Molly Bish investigation. He moved to Arkansas and continued his errant ways ;)
Do polygraphers even try to explain these results?
Human Subject,
The last time I saw a polygrapher try to explain results like these, he said something to the effect that the examiner was obviously incompetent and that HE would not have had such results because HE was GOOD.
In other words, no they haven't.